Mansfield is located in Tarrant County, on US 287 by Lake Joe Pool.
As the Dallas-Fort Worth metroplex grew, the population of Mansfield increased from 1,375 in 1961 to 5,000 by 1974, when employees working in the larger neighboring cities transformed the town from a rural community into a modern suburb.
By 1982 Mansfield reported 8,000 residents and 227 businesses. It had 10,733 residents and 267 businesses in 1988. In 1990 it had a population of 15,607 and had grown into Ellis County.
Mansfield is part of the Dallas, Texas metro area.